void SystemDraw::SysDrawImageOp(int x, int y, const Image& img, const Rect& src, Color color)
{
	GuiLock __;
	if(img.GetLength() == 0)
		return;
	LLOG("SysDrawImageOp " << img.GetSerialId() << ' ' << img.GetSize());

// Insert this optimization here:
	int kind = img.GetKindNoScan();
	if(kind == IMAGE_OPAQUE && !IsNull(color)) {
		Size sz=img.GetSize();
		DrawRect(x, y, sz.cx, sz.cy, color);
		return;
	}
	if(kind == IMAGE_OPAQUE && (GetDeviceCaps(GetHandle(), RASTERCAPS) & RC_DIBTODEV)) {
		LTIMING("Image Opaque direct set");
		Size sz=img.GetSize();
		SetSurface(*this, x, y, sz.cx, sz.cy, ~img);
		return;
	}
// End of insertion

	ImageSysDataMaker m;
	...